83318832161 has 4 divisors (see below), whose sum is σ = 84890885652. Its totient is φ = 81746778672.

The previous prime is 83318832097. The next prime is 83318832169. The reversal of 83318832161 is 16123881338.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16123881338 = 2 ⋅8061940669.

It can be written as a sum of positive squares in 2 ways, for example, as 20806331536 + 62512500625 = 144244^2 + 250025^2 .

It is a cyclic number.

It is not a de Polignac number, because 83318832161 - 2⁶ = 83318832097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83318832169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786026666 + ... + 786026771.

It is an arithmetic number, because the mean of its divisors is an integer number (21222721413).

Almost surely, 2^83318832161 is an apocalyptic number.

It is an amenable number.

83318832161 is a deficient number, since it is larger than the sum of its proper divisors (1572053491).

83318832161 is a wasteful number, since it uses less digits than its factorization.

83318832161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572053490.

The product of its digits is 165888, while the sum is 44.

The spelling of 83318832161 in words is "eighty-three billion, three hundred eighteen million, eight hundred thirty-two thousand, one hundred sixty-one".